Earth may hide a lethal carbon cache

2019-04-03 14:01:05

By Fred Pearce CARBON buried in the Earth could ultimately determine the fate of our planet’s atmosphere. So concluded a pioneering meeting last week about the Earth’s long-neglected “deep” carbon cycle. Carbon is locked away down in the Earth’s crust: in magma and old carbonate rocks buried by plate tectonics, in fossil fuels like coal and oil, and in ice lattices beneath the ocean bed. It has long been assumed that this carbon was largely cut off from the surface,